Product Description
Sorbic acid, also known as 2,4-hexadienoic acid, 2-propenyl acrylic acid, or herbal tea acid, is a food additive with the molecular formula C₆H₈O₂. It is effective in inhibiting the growth of various fungi, including yeasts and molds.
In addition to its use in food applications, sorbic acid is widely utilized in animal feed, cosmetics, pharmaceutical products, packaging materials, and rubber additives.
Product Parameters
| Melting point | 132-135 °C (lit.) |
| Boiling point | 228°C |
| density | 1.2 g/cm3 at 20 °C |
| vapor pressure | 0.01 mm Hg ( 20 °C) |
| refractive index | 1.4600 (estimate) |
| FEMA | 3921 | 2,4-HEXADIENOIC ACID, (E,E)- |
| Fp | 127 °C |
| storage temp. | 2-8°C |
| solubility | ethanol: 0.1 g/mL, clear |
| pka | 4.76(at 25℃) |
| form | Crystalline Powder |
| color | White or cream-white |
| Odor | bland |
| PH | 3.3 (1.6g/l, H2O, 20°C) |
| biological source | synthetic |
| Water Solubility | 1.6 g/L (20 ºC) |
| Merck | 148721 |
| JECFA Number | 1176 |
| BRN | 1741831 |
| Henry's Law Constant | 3.3×101 mol/(m3Pa) at 25℃, Abraham and Jr. (2019) |
| Stability: | Material saturated with this acid may ignite spontaneously. Incompatible with strong oxidizing agents. May be light sensitive. |
Major Application | cleaning products |
| cosmetics | |
| flavors and fragrances | |
| food and beverages | |
| personal care | |
Cosmetics Ingredients Functions | PRESERVATIVE |
| FRAGRANCE | |
| InChI | 1S/C6H8O2/c1-2-3-4-5-6(7)8/h2-5H,1H3,(H,7,8)/b3-2+,5-4+ |
| InChIKey | WSWCOQWTEOXDQX-MQQKCMAXSA-N |
| SMILES | C\C=C\C=C\C(O)=O |
| LogP | 1.32 at 20℃ |
| CAS DataBase Reference | 110-44-1(CAS DataBase Reference) |
| NIST Chemistry Reference | 2,4-Hexadienoic acid, (E,E)-(110-44-1) |
| EPA Substance Registry System | Sorbic acid (110-44-1) |
Safety Information
| Hazard Codes | Xi |
| Risk Statements | 36/37/38-36/38 |
| Safety Statements | 26-36-24/25 |
| WGK Germany | 1 |
| RTECS | WG2100000 |
| F | 8 |
| Autoignition Temperature | >130 °C |
| TSCA | TSCA listed |
| HS Code | 29161930 |
| Storage Class | 11 - Combustible Solids |
Hazard Classifications | Eye Irrit. 2 |
| Skin Irrit. 2 | |
| Hazardous Substances Data | 110-44-1(Hazardous Substances Data) |
| Toxicity | LD50 orally in rats: 7.36 g/kg (Smyth, Carpenter) |
Application Scenarios
Commonly applied at a concentration of 0.1%–0.3%, it serves as an ideal anti-fungal agent for food and daily chemical products. In cosmetic manufacturing, it can partially replace glycerin in creams, ointments and emulsions to optimize formula stability. Though low in toxicity, it may cause mild skin irritation for sensitive groups and requires standardized dosage and usage control.
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